Zinc Borate is an inorganic boron-based compound supplied as a fine white powder that is insoluble in water. Thanks to its low toxicity, excellent thermal stability, and high compatibility with a wide range of polymer systems, it is widely used as a multifunctional additive in many industries. Zinc Borate is recognized as a halogen-free flame retardant that not only improves fire resistance but also enhances the durability and overall performance of finished products.

One of the most important properties of Zinc Borate is its flame-retardant and smoke-suppressing performance. At temperatures above approximately 290°C, it releases its water of hydration, absorbing heat and slowing the spread of flames. It also promotes the formation of a protective char and glass-like layer on the material surface, helping to prevent further combustion and polymer degradation. Zinc Borate performs effectively in both halogenated and halogen-free flame-retardant systems and exhibits a strong synergistic effect when used with antimony trioxide, aluminum hydroxide, magnesium hydroxide, red phosphorus, and ammonium polyphosphate. In addition, it offers excellent thermal stability, chemical resistance, and good dispersion in polymer formulations.

Zinc Borate is widely used in PVC, polyolefins, polyamides, epoxy resins, polyester resins, thermoplastic elastomers, and rubber compounds. It is also extensively applied in wire and cable compounds, paints, coatings, adhesives, textiles, cellulose fibers, paper products, and intumescent coating systems to improve fire resistance, reduce smoke generation, enhance thermal stability, and extend product service life. Owing to its multifunctional performance, low toxicity, and broad compatibility, Zinc Borate is considered one of the most effective flame-retardant additives for polymer, construction, coating, and cable industries.

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